SafeGate thermopile utilizes the concept of infrared radiation to determine the surface temperature of objects without any physical contact.
SafeGate uses a high performance, high quality, digital signal thermopile array system inside a TO-39 metal housing capable of 90° field of view.
The single thermopile sensor is a non-contact human body temperature measurement sensor. An elevated body temperature, or fever, is related to many diseases and can be a first indicator whether a person is healthy or not. An elevated temperature is compared to wide ranges of core body temperatures considered to be "healthy", ranging from 36.1°C to 37.2°C. This also accounts for the fact that "normal" temperature varies throughout the day.
Core body temperatures of above 38°C is generally considered to be a fever.
SafeGate systems are designed to detect the temperature of people walking through a security gate or office entrance. To measure people's temperature, the system is equipped with a thermal sensor with spatial resolution.
The thermopile array sensor uses an iPad or iPhone camera to measure the distance and locate faces. It's designed to take temperature measurements specific to areas of the forehead (sinciput).
The screening system identifies the forehead and measures its maximum temperature. With an internal threshold, it can immediately detect and recognize an elevated body temperature. If so, the person should double checked with a common forehead thermometer.
This method helps to reduce the influence of ambient conditions on the non-contact body temperature measurement and can help to achieve more reliable fever detection that is scalable.